Variable-Sized Capture Buffer - R&S FSV-K7 Operating Manual

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R&S FSV-K7/K7S
Table 2-2: Sample Rate, Measurement Time and Trigger Offset using a Gaussian demodulation filter
Demod. band-
width
28 MHz
18 MHz
10 MHz
8 MHz
5 MHz
3 MHz
1.6 MHz
800 kHz
400 kHz
200 kHz
100 kHz
50 kHz
25 kHz
12.5 kHz
6.4 kHz
3.2 kHz
1.6 kHz
800 Hz
400 Hz
200 Hz
100 Hz
1) gaussian filter curve is limited by IQ bandwidth
Large numbers of samples
Principally, the R&S FSVA/FSV can handle up to 1.6 million samples. However, when
480 001 samples are exceeded, all traces that are not currently being displayed on a
screen are deactivated to improve performance. The traces can only be activated
again when the samples are reduced.

2.1.4 Variable-Sized Capture Buffer

The capture buffer size is now variable. By default, the size of the capture buffer is
identical to the defined measurement time. However, if you select a larger capture time
manually, you can then scroll through the data in the capture buffer by changing the
Operating Manual 1176.7561.02 ─ 06
Sample rate
1) 112 MHz
72 MHz
1)
40 MHz
32 MHz
12 MHz
10.666 MHz
6.4 MHz
3.2 MHz
1.6 MHz
800 kHz
400 kHz
200 kHz
100 kHz
50 kHz
25.6 kHz
12.8 kHz
6.4 kHz
3.2 kHz
1.6 kHz
800 Hz
400 Hz
Analog Demodulation Option R&S FSV–K7
Instrument Functions Analog Demodulation
Measurement time
Min. Max.
8.929 ns 14.28 ms
13.88 ns 22.22 ms
25 ns 40 ms
31.25 ns 50 ms
83.33 ns 133.3 ms
93.75 ns 150 ms
156.25 ns 250 ms
312.5 ns 5 ms
625 ns 1 s
1.25 us 2 s
2.5 us 4 s
5 us 8 s
10 us 16 s
20 us 32 s
39.0625 us 62.5 s
78.125 us 125 s
156.25 us 250 s
312.5 us 500 s
625 us 1000 s
1.25 ms 2000 s
2.5 ms 4000 s
Trigger offset
Min. Max.
-14.28 1.872457134 s
-22.22 ms 2.912711097 s
-40 ms 5,242879975 s
-50 ms 6.553599969 s
-80 ms 10,48575995 s
-133.3 ms 17,47626667 s
-250 ms 32.76799984 s
-5 ms 65.53599969 s
-1 s 131.0719994 s
-2 s 262.1439988 s
-4 s 524.2879975 s
-8 s 1048.575995 s
-16 s 2097.15199 s
-32 s 4194.30398 s
-62.5 s 8191.999961 s
-125 s 16383.99992 s
-250 s 32767.99984 s
-500 s 65535.99969 s
-1000 s 131071.9994 s
-2000 s 262143.9988 s
-4000 s 524287.9975 s
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